Feed-water heater.



A. A. MVISTUTZ.`

EEED WATER HEATER. APPLICATION FILED JULY 2, 1999.

merma` Apr. 5, 1910.

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Specification of Letters Patent.

'Application mea muy 2, 1909.1 seran No. osfzi.`

To all whom it 'may concern: y

Be it known that l', Amos A. Ans'rnrz, a citizen ot' the United Stated residing at Bluffton, in the county. olf Allen andv ,Stale of Ohio, have invented a. new and useful Feed-Tater Heater, of which the Yfollowing` is a specification.

rlhis invention relates to feed water heaters of that kind in which the snioke and other products of combustion are utilized. and .it ,tias-for its object to provide novel and improved means for causing a circulation of the waterin the heater, and also 'lor purify- .infr the Same.

Another object of theiaventiou to prnvide a heater which can be readily applied and claimed, reference being had to the.

drawingA hereto annexed, in which Figure l is a transverse sect-ion ot one. `form of heater. Fig. 2 is a horizontal seiction thereof. Fig. 3 is a` vertical section ot' another 'lorm of heater. Fig. t is a` horizontal section thereof. v

ln lligijs. l aud 2 the inventionis` shown applied to a stationary horizontal return tubular boiler. The heater comprises a cylindrical tank 5, closed at one end by a removable head (3, in order that access to the interior of the tank may he had. This tank is mounted above therear ends ot the fines T ot the boiler, onthe rear wall. olf the boiler setting, it being supported in stirrups 8, or

other-*suitable means, fastened to said wall.

The tank is of `a length-so as to extend throughout the entire width of the boilerl Within the tank- 5 is'mounted a series of casings fl, which are nested and spaced apart froln'each other.

Each casing provided with an opening, so that the water may llow from one into the other throughout the. entire Series. The casings are preferably reetangularin form, and they are spaced Afrom each other by any-suitable means, the first or outer one of the casings bei ng also spaced from the inner wall of the tank.

The casings Qare removable from the casing has a removable cover l0 in order' that it may be emptied of. the sediment. eollecting therein. The covers are held m rammed apr, 5, 1910.

cent the opening l2 in order that the water may yenter said casing so that. the pressure may be cqualon the insidevand outsidev .ot

thc lsame. The function of this casing, however, is to provi le a. narrow channel within the next sinrounding casing through', which the water may tlow. The other ('.asillgsalso form narrow spaces in the 'asings in which they are mounted, thus causingl the water to circulate through the heater in a thin stream, whereby it is 'more rapidly heated. 'lhe inlet pipe of the heater is indicated at ll. vSaid ipe extends into the tank throughthe side wall thereof, and passes through the walls of the casings t) at one of the ends thereof, and opens into the easing which incloses the innermost one. The opposite end of the casing which is entered by thc inlet pipe has an opening 1,2,through which the water flows into the next casing, and in this last'n'ientioned casingr in that end 'which is opposite the opening l2, are opening-s 13, through which the water Hows into the next casing. the end wall ofthe last mentioned easinghas an opening 14, which communicates with the interior olf the tank 5. This last mentioned opening' is made in that end-'ot the casingwhich is opposite the end at which the water enters through the openings From the tank the. water is carried to the boiler by a pipe 15 entering the tank adjacent that end which is opposite the end lit-which the water enters .the tank tlirouoh the opening` 14.'

ily the herein described arrangement ot nested casings the water is caused to` flow through the heater in a thin, tortuous stream. whereby it will be quickly heated, the tank being located so as to be exposed to the smoke and other waste productsof combastion. v impurities present in the water will settle in theseveral easings, which, as already described may be removedfor disposa] of the sediment, and the heater is theii'ctorc also made to serveY as a Water-purilicr. The tank is also itted with a blow-0H' valve 17, for emptying'the same.

-'l`he heater is simple in structure, and can be readily applied to the boiler, no 'modifica 4 tion or changes in the structure thereof being' required, and -it el'ectually serves the purpose tor which it is designed.

- The heater shownin Figs. 3 and 4 is deJ signed lor use in connection with a portable boiler, said boiler being indicated at 18, the boiler of a traction engine being shown. This form of heater comprises an upstanding cylindrical tank 19, mounted on the front \end ofthe boiler, so as to inclose.I the stack 20. The to of the tank is provided with a removablelover 21, and at the center of the tank is a iiue 22, the wall of which may be furnished by the stack, the head of the stack being bolted to the cover 21. The wall of the flue forms an annular space in the interior of the tank, in which space is mounted a series of concentric drums 23, these drums being spaced from each other and closed at their ends. The closure for the upper ends of the drums is removable outer drum is spaced from the side wall of the tank, and the drums are also spaced from the cover or head 21. The water inlet pipe 24: extends through the side Wall of the tank 19, and also through the first or outer drum 23 near the top thereof, so that the Water first flows into the space between the rst and second drum. In the second drum, near the bottom thereof, and diametrically opposite the point of entrance of the inlet pipe, is an opening. 25, through which the water flows into the`space between the second and third drums. From this spaee the water Hows into the space between the third and fourth drums through an opening 26, made in the third drum near the top thereof, diametrically opposite the opening 25, and so on throughout the entire series, the water entering one drum at the bottom and the next drum at the top. The space between the innermost drum and thewall of the le p 22 is open at its lower end, and the Awater iows from this space into the tank 19, from which it is carried to the boiler by a pipe 2T, entering the tank.

By the herein described arrangement of drums the water iows through the heater in a tortuoiis path, and is therefore rapidly heated. The sediment also settles to the bottom of the drums; from which it may be removed bytaking the drums out of the tank. To the bottom of the tank is fitted Aa blow-oii` 'valve 28 and 'the heater may be provided with the usual pressure gage, safety-valve, and water tube.

vWhat is claimed is A feed water. heater comprising a tank4 having an outlet, a series of nested casings mounted in the tank and spaced from each other, said casings with ythe exception of the innermost one having openings in one of their ends, the openingof one casing being at the end opposite to that end in which the opening of the next casing is made, and the opening of tlie outermost casing communieating with the tank, andan inlet pipe eX- tending into the casing which surrounds lthe innermost one, said innermost casing serving to provide a narrow channel within the next surrounding casing, and having an opening opposite Vthe opening of said surrounding casing to permit the entry of water into said innermost casing forA the purpose ofequalizing the pressure.

In testimony that I claim the foregoing as own, vI-have hereto affixed my signature in the presence of two witnesses.

AMOS A. AMS-TUTZ. l/Vitnesses JAMES W. JACKSON, HENRY L. Romer. 

